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NM_000257.4(MYH7):c.4985G>C (p.Arg1662Pro) AND Cardiomyopathy

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Oct 6, 2023
Review status:
1 star out of maximum of 4 stars
criteria provided, single submitter
Somatic classification
of clinical impact:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Somatic classification
of oncogenicity:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Record status:
current
Accession:
RCV003998153.2

Allele description [Variation Report for NM_000257.4(MYH7):c.4985G>C (p.Arg1662Pro)]

NM_000257.4(MYH7):c.4985G>C (p.Arg1662Pro)

Genes:
LOC126861897:BRD4-independent group 4 enhancer GRCh37_chr14:23884455-23885654 [Gene]
MYH7:myosin heavy chain 7 [Gene - OMIM - HGNC]
MHRT:myosin heavy chain associated RNA transcript [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
14q11.2
Genomic location:
Preferred name:
NM_000257.4(MYH7):c.4985G>C (p.Arg1662Pro)
HGVS:
  • NC_000014.9:g.23415801C>G
  • NG_007884.1:g.24861G>C
  • NM_000257.4:c.4985G>CMANE SELECT
  • NP_000248.2:p.Arg1662Pro
  • LRG_384t1:c.4985G>C
  • LRG_384:g.24861G>C
  • LRG_384p1:p.Arg1662Pro
  • NC_000014.8:g.23885010C>G
  • NM_000257.2:c.4985G>C
  • NR_126491.1:n.233C>G
Protein change:
R1662P
Links:
dbSNP: rs370328209
NCBI 1000 Genomes Browser:
rs370328209
Molecular consequence:
  • NM_000257.4:c.4985G>C - missense variant - [Sequence Ontology: SO:0001583]
  • NR_126491.1:n.233C>G - non-coding transcript variant - [Sequence Ontology: SO:0001619]
Observations:
1

Condition(s)

Name:
Cardiomyopathy (CMYO)
Synonyms:
Cardiomyopathies
Identifiers:
MONDO: MONDO:0004994; MedGen: C0878544; Human Phenotype Ontology: HP:0001638

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV004837471All of Us Research Program, National Institutes of Health
criteria provided, single submitter

(ACMG Guidelines, 2015)		Uncertain Significance
(Oct 6, 2023) 		germlineclinical testing

PubMed (2)
[See all records that cite these PMIDs]

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknown1not providednot provided108544not providedclinical testing

Citations

PubMed

Clinical features and genotypes of Laing distal myopathy in a group of Chinese patients, with in-frame deletions of MYH7 as common mutations.

Yu M, Zhu Y, Lu Y, Lv H, Zhang W, Yuan Y, Wang Z.

Orphanet J Rare Dis. 2020 Dec 9;15(1):344. doi: 10.1186/s13023-020-01626-y.

PubMed [citation]
PMID:
33298082
PMCID:
PMC7727133

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]
PMID:
25741868
PMCID:
PMC4544753

Details of each submission

From All of Us Research Program, National Institutes of Health, SCV004837471.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided1not providednot providedclinical testing PubMed (2)

Description

This missense variant replaces arginine with proline at codon 1662 of the MYH7 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in a two unrelated families affected with Laing distal myopathy (PMID: 33298082 and 24664454). This variant has not been reported in individuals with MYH7-related cardiovascular disorders. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknown108544not providednot provided1not providednot providednot provided

Last Updated: Nov 10, 2024